CCR5 and infection: In order to test whether high doses of gonadosteroids also induce increased expression of co-receptors playing a significant role in HIV-1 infection, we studied co-receptors expression (in particular, CCR5, and CCR8) in uninfected donor’s PBMCs after treatment with high doses of hormones, post infection and in infected PBMCs treated with hormones (Supplementary File Figure S2).